This circuit with two HT2030s powers 6 LEDs in a decorative flashing system. The circuit is from Electronics Now magazine, December 1997. The LEDs are fed in sequence.
Intended for SSB and CW reception, this circuit was found in old English documentation. The...
Using two transistors, the resting current for this alarm is 25uA. The circuit was found in an...
This simple rain, leak or moisture detector circuit appears in other places on this site with...